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Chemically-Fueled Time-Gated Luminescent Metamorphosis.

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This summary is machine-generated.

Researchers developed a novel transient hydrogel that changes color over time, mimicking biological systems. This fuel-driven material offers programmable multicolor emission for advanced applications like information encryption.

Keywords:
chemically fueledenergy transferinformation encryptionmulticolor emissionself‐assemblytime‐scale propertiestransient hydrogelation

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Biomimetic Systems

Background:

  • Biological systems exhibit remarkable spatiotemporal control, inspiring the development of lifelike smart materials.
  • Replicating time-dependent programmable features, like adaptive luminescence, remains a significant challenge in materials science.

Purpose of the Study:

  • To create a chemically-fueled transient hydrogel with programmable, time-dependent multicolor emission.
  • To explore the potential of this hydrogel in applications such as Förster Resonance Energy Transfer (FRET) and information encryption.

Main Methods:

  • Synthesis of an aggregation-induced emission-active peptide conjugate (NI-VD) and its anhydride form (NI-VD-An).
  • Utilizing fuel-driven anhydride formation for transient hydrogelation and emission evolution (green to blue).
  • Incorporating selective fluorophore trapping to achieve programmable multicolor emission (blue to purple).

Main Results:

  • Demonstrated autonomous reversibility via anhydride hydrolysis, enabling dynamic modulation of emission characteristics.
  • Achieved programmable multicolor emission through selective fluorophore trapping within the hydrogel network.
  • Showcased the hydrogel's potential as a time-dependent FRET donor and distance modulator.

Conclusions:

  • The developed transient hydrogel platform provides time-gated multicolor emission, advancing biomimetic material design.
  • This work translates fundamental hydrogel properties into applications like spatiotemporal pattern development and time-coded information encryption.